|This article or section is about Monstergirls (or a monster that is frequently depicted as a Monstergirl), something that /tg/ widely considers to be the purest form of awesome. Expect PROMOTIONS! and /d/elight in equal measure, often with drawfaggotry or writefaggotry to match.|
"Snek" is a way to refer to snakes in internet slang. As used on 4chan (particularly /tg/) and the wider internet, Sneks are usually female anthropomorphic snakes such as Lamia or Naga, or else they are real-life adorable snakes. Common usages refer to the character Miia the Lamia from the comic Life With Monstergirls, Yuan-ti, or the snakewomen (AKA: Vipers) from the X-Com video game series (XCOM 2 to be precise).